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path: root/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/filter/FCGet.java
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/**
 * ============LICENSE_START====================================================
 * org.onap.ccsdk
 * ===========================================================================
 * Copyright (c) 2023 AT&T Intellectual Property. All rights reserved.
 * ===========================================================================
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============LICENSE_END====================================================
 *
 */

package org.onap.ccsdk.apps.cadi.filter;

import jakarta.servlet.FilterConfig;
import jakarta.servlet.ServletContext;

import org.onap.ccsdk.apps.cadi.Access;
import org.onap.ccsdk.apps.cadi.Access.Level;
import org.onap.ccsdk.apps.cadi.config.Get;

/*
 * A private method to query the Filter config and if not exists, return the default.  This
 * cleans up the initialization code.
 */
public class FCGet implements Get {
    /**
     *
     */
    private final Access access;
    private FilterConfig filterConfig;
    private ServletContext context;

    public FCGet(Access access, ServletContext context, FilterConfig filterConfig) {
        this.access = access;
        this.context = context;
        this.filterConfig = filterConfig;
    }

    public String get(String name, String def, boolean print) {
        String str = null;
        // Try Server Context First
        if (context!=null) {
            str = context.getInitParameter(name);
        }

        // Try Filter Context next
        if (str==null && filterConfig != null) {
            str = filterConfig.getInitParameter(name);
        }

        if (str==null) {
            str = access.getProperty(name, def);
        }
        // Take def if nothing else
        if (str==null) {
            str = def;
            // don't log defaults
        } else {
            str = str.trim(); // this is vital in Property File based values, as spaces can hide easily
            if (print) {
                access.log(Level.INFO,"Setting", name, "to", str);
            }
        }
        return str;
    }
}